Ari got paired with Casey. This makes bile rise to Jade's throat unnecessarily. She knows, at a logical level, that it was already settled, and that Ari would be going with her to this dance. The fact that someone had put their names next to anyone else's on the list makes her angry, anyhow.

Jade has a small black plastic knife in her pocket. Several, actually. It's not clear where she got them, but she's been dutifully practicing juggling knives after her horoscope had suggested it last week. She's no good at juggling and uses one for something different now.

She shoves her way to the front of the line and neatly stabs the paper through first her pairing, then Ari's. Then she turns around. "Ari." She calls for her, knife still at the ready, which makes it kind of look like she's about to knife her girlfriend, "Go with me, instead."